US5169237A - Supporting and guide roller for pull-out guides for drawers - Google Patents

Supporting and guide roller for pull-out guides for drawers Download PDF

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Publication number
US5169237A
US5169237A US07/594,311 US59431190A US5169237A US 5169237 A US5169237 A US 5169237A US 59431190 A US59431190 A US 59431190A US 5169237 A US5169237 A US 5169237A
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US
United States
Prior art keywords
rolling surface
roller
notch
roller body
flanks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/594,311
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English (en)
Inventor
Georg Domenig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grass GmbH
Original Assignee
Grass GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Assigned to GRASS AG, reassignment GRASS AG, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DOMENIG, GEORG
Application granted granted Critical
Publication of US5169237A publication Critical patent/US5169237A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/437—Rollers for slides or guides

Definitions

  • the present invention relates to a supporting and guide roller for pull-out guides for drawers.
  • This kind of roller has become known through patents DE-AS 20 18 132 and AT-PS 317 473. According to these patents, the second and softer rolling surface is first to bear a normal load and, as the load increases, the soft rolling surface is deformed radially inward and the load transfer is then carried out through the hard, first rolling surface.
  • DE-GM 71 29 122 provides an O-ring for this purpose that extends over the periphery of the hard rolling surface.
  • the disadvantage of this design is that the O-ring rubs and chafes on the groove base and begins to shrink and thicken under large loads and thus spreads out and shears off. The service life of this kind of known roller is thus relatively short.
  • German patent 35 07 821 filed by the same assignee that the service life can be improved by injecting elastic material of the softer rolling surface into a radially running groove intersecting transverse boreholes in an equidistant arrangement on the same radius in the peripheral direction of the roller. In this way, the transverse boreholes are also filled with the soft elastic material together with the groove, which improves the service life considerably.
  • the object of the present invention is to further improve the service life of a supporting and guide roller of the type mentioned in the beginning.
  • the invention achieves this object in that the second rolling surface is arranged in the area of a widened notch in the roller body extending in the peripheral direction of the roller.
  • the essential advantage achieved thereby is that the elastic material of this rolling surface can now be displaced into the invented notch in the area of the hard roller body when the soft rolling surface is under load.
  • the soft elastic plastic ring is not jammed in the vertical groove, and the side flanks of this plastic ring do not chafe and shrink and thicken on the radially outer groove walls of this groove.
  • the width and depth of the notch will preferably be dimensioned so that the elastic material will be displaced into the notch when the soft rolling surface is under load.
  • the specialist is free to choose the actual dimensioning of the width and depth of the notch.
  • the precise dimensions will depend, among other things, on the hardness of the elastic material and the required supporting properties of this elastic material.
  • the notch will flare radially outward because this will form inclined flanks on which the soft elastic material of the second rolling surface can be supported and distributed.
  • the notch can, according to the invention, also have vertical flanks that form a clearance from the vertical flanks of the softer plastic ring.
  • the soft rolling surface has a convex rounding.
  • the soft material of the rolling surface prefferably has straight, vertical side flanks, which change into narrowing flanks that are seated on also inclined flanks on the base of the notch.
  • the groove base of the radial groove prefferably be arranged below the bottom edge of the transverse borehole, because the groove base will then be supported on the inside on an offset groove surface in the hard roller body.
  • FIG. 1 is a partial cross-section through the invented roller.
  • FIG. 2 is a side view of the roller with intersected transverse boreholes.
  • FIG. 3 is a detail of FIG. 1.
  • the supporting and guide roller 1 according to the invention is basically described in the assignee's patent 35 07 821 or in U.S. Pat. No. 4,647,225. Reference is made to the disclosures therein, which are included in full in the present invention.
  • the supporting and guide roller 1 has a roller body 2 made of a relatively hard plastic material, which provides a middle, central receiving borehole15 for insertion of a spindle.
  • the roller body 2 has a radially extending groove 3, the opening thereof lying radially outward being formed by a flaring notch 11.
  • the radial circumferential groove 3 intersects transverse boreholes 4, which are arranged equidistantly in the peripheral direction with axial longitudinal extension in the roller body 2.
  • a soft, elastic material 9 is injected into the groove 3 as well as into the transverse boreholes 4; it extend radially over the groove 3 and thus forms a soft rolling surface 8.
  • the peripheral surface of the roller body 2 forms a hard rolling surface 7.In the unloaded condition, the roller 1 supports only the rolling surface 8.
  • the "unloaded condition” is understood here to mean the load on the guide roller when the drawer is not under load. The drawer thus operates practically without noise because the drawer load is transferred through the soft rolling surface 8. As the load 8 on the drawer increases, the soft rolling surface 8 is displaced until the amount 10 is exceeded and the hard rolling surface 7 takes over the essential part of the load transfer.
  • the soft rolling surface 8 It is important for the soft rolling surface 8 to have a convex rounding 13and to be arranged by the amount 10 over the hard rolling surface 7.
  • the soft material 9 forms inclined flanks 18 on the base of the notch 11, which are seated on the also inclined flanks 12 of the notch 11.
  • the width of the rolling surface 8 is greater than the width of the groove 3 in the axial direction of the roller 1, there is a supporting effect of the soft rolling surface 8 in the area of the flaring notch 11.
  • the groove base of the groove 3 forms a lower shoulder 5 that extends below the bottom edge 6 of the transverse borehole 4, so that there is support here too of the drawer load acting onthe soft rolling surface 8.
  • the side flanks 14 connected to the inclined flanks 18 are vertical and straight. In another embodiment, however, these side flanks 14 can also be convex.
  • the depth 16 of the notch 11 and the width 17 are dimensioned so that the material of the soft rolling surface 8 is displaced completely into the upwardly opening notch 11 when the drawer load is absorbed essentially only by the hard rolling surface 7.
  • the material of the rolling surface does not shrink and thicken and rub and chafe on the walls of the notch 11 or the walls of the groove 3. This considerably improves the service life of the invented supporting and guide roller.
  • the present invention encompasses not only the embodiment shown here, whichprovides for the vertical groove 3 to intersect corresponding transverse boreholes 4 in the roller body 2.
  • transverse boreholes 4 can also be eliminated entirely, leaving only the vertical groove 3 with the invented design of the rolling surface 8 inconnection with the notch 11.
  • roller 1 in two parts, dividing it, for example, in the area of the center transverse line 19, giving two roller parts held together by fastening means not described in more detail (screws, rivets or cementing). It is possible here too to provide these transverse boreholes 4 or leave them out, providing only the vertical groove 3 with the soft rolling surface 8.
  • the soft material 8 is not injected into the groove and the transverse boreholes, rather the material is an O-ring, which is seated with its correspondingly beveled supporting flanks on the associated flanks 12 of the flaring notch 11.
  • flanks 12 instead of the tapering flanks 12 shown here, use can also be made of vertically running flanks 12, which are spaced away from the also vertically running flanks 14. The flanks 12 and 14 are then parallel to each other and spaced equidistantly.
  • flanks 18 in this embodiment are directed horizontally and run parallelto the longitudinal axis of the roller body also parallel to the longitudinal axis of the transverse boreholes 4), so that this embodiment also provides for the desired supporting effect of the soft material 8 on the associated flanks 12 in the area of the notch 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Tires In General (AREA)
US07/594,311 1990-09-28 1990-10-09 Supporting and guide roller for pull-out guides for drawers Expired - Fee Related US5169237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4030692A DE4030692A1 (de) 1990-09-28 1990-09-28 Trag- und fuehrungsrolle fuer ausziehfuehrungen fuer schubladen

Publications (1)

Publication Number Publication Date
US5169237A true US5169237A (en) 1992-12-08

Family

ID=6415161

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/594,311 Expired - Fee Related US5169237A (en) 1990-09-28 1990-10-09 Supporting and guide roller for pull-out guides for drawers

Country Status (3)

Country Link
US (1) US5169237A (de)
AT (1) AT405010B (de)
DE (1) DE4030692A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487610A (en) * 1993-05-18 1996-01-30 Mepla-Werke Lautenschlager Gmbh & Co. Kg Wheel for roller drawer guides
DE19648170C1 (de) * 1996-11-21 1997-07-31 Faure Bertrand Sitztech Gmbh Führungseinrichtung, insbesondere für Kraftfahrzeugsitze
US6553618B2 (en) 2001-05-01 2003-04-29 Overhead Door Corporation Dual durometer roller guide member for track guided door
EP1407691A1 (de) * 2002-10-09 2004-04-14 Grass GmbH Rollschubführung
US20040256333A1 (en) * 2001-11-07 2004-12-23 Bsh Bosch Und Siemens Hausgerate Gmbh Roller retainer for dishwashers
WO2005065485A1 (de) * 2004-01-12 2005-07-21 Alfit Ag Ausziehführung für schubladen
US20090243451A1 (en) * 2004-01-12 2009-10-01 Christian Prentner Drawer pull-out guide
US20090277315A1 (en) * 2008-05-08 2009-11-12 Alek Ipatenco Tile saw
US20130199320A1 (en) * 2010-05-05 2013-08-08 Robert Bosch Gmbh Eccentric Bearing
US11131131B2 (en) 2017-12-18 2021-09-28 Robert A. Kelley Garage door noise reduction roller assembly having threads which extend to the distal end of the roller shaft, and a threaded closing member
US11180940B2 (en) 2015-08-14 2021-11-23 Robert A. Kelley Garage door noise reduction roller assembly with noise reduction roller wheel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19855700B4 (de) * 1998-12-02 2005-06-23 Prieß, Horstmann & Co. Maschinenbau GmbH & Co. KG Anschlagpuffer für Möbelteile, insbesondere für Möbeltüren und Schubkästen
DE202006011766U1 (de) * 2006-07-28 2007-11-29 Alfit Ag Ausziehführung zur Führung von Möbelteilen
CN209558771U (zh) * 2018-12-21 2019-10-29 博西华电器（江苏）有限公司 一种冰箱

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912288A (en) * 1957-10-09 1959-11-10 Gen Motors Corp Guide roller
US4601522A (en) * 1983-05-03 1986-07-22 Julius Blum Gesellschaft M.B.H. Pull-out guide assembly for drawers or the like
US4878630A (en) * 1988-03-02 1989-11-07 W. Schlafhorst & Co. Guide roller assembly
US5000583A (en) * 1990-05-04 1991-03-19 Shen Ming T Wheel of drawer slide set

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2145343A (en) * 1936-08-07 1939-01-31 Westinghouse Air Brake Co Moving stair roller
DE3507821A1 (de) * 1983-09-08 1986-09-11 Grass Alfred Metallwaren Trag- und fuehrungsrolle fuer ausziehfuehrungen
US4647225A (en) * 1985-03-06 1987-03-03 Alfred Grass Support and guide roller for extension guide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912288A (en) * 1957-10-09 1959-11-10 Gen Motors Corp Guide roller
US4601522A (en) * 1983-05-03 1986-07-22 Julius Blum Gesellschaft M.B.H. Pull-out guide assembly for drawers or the like
US4878630A (en) * 1988-03-02 1989-11-07 W. Schlafhorst & Co. Guide roller assembly
US5000583A (en) * 1990-05-04 1991-03-19 Shen Ming T Wheel of drawer slide set

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487610A (en) * 1993-05-18 1996-01-30 Mepla-Werke Lautenschlager Gmbh & Co. Kg Wheel for roller drawer guides
DE19648170C1 (de) * 1996-11-21 1997-07-31 Faure Bertrand Sitztech Gmbh Führungseinrichtung, insbesondere für Kraftfahrzeugsitze
US6553618B2 (en) 2001-05-01 2003-04-29 Overhead Door Corporation Dual durometer roller guide member for track guided door
US20040256333A1 (en) * 2001-11-07 2004-12-23 Bsh Bosch Und Siemens Hausgerate Gmbh Roller retainer for dishwashers
EP1407691A1 (de) * 2002-10-09 2004-04-14 Grass GmbH Rollschubführung
WO2005065485A1 (de) * 2004-01-12 2005-07-21 Alfit Ag Ausziehführung für schubladen
US20090243451A1 (en) * 2004-01-12 2009-10-01 Christian Prentner Drawer pull-out guide
US20090277315A1 (en) * 2008-05-08 2009-11-12 Alek Ipatenco Tile saw
US20130199320A1 (en) * 2010-05-05 2013-08-08 Robert Bosch Gmbh Eccentric Bearing
US9506541B2 (en) * 2010-05-05 2016-11-29 Robert Bosch Gmbh Eccentric bearing
US11180940B2 (en) 2015-08-14 2021-11-23 Robert A. Kelley Garage door noise reduction roller assembly with noise reduction roller wheel
US11131131B2 (en) 2017-12-18 2021-09-28 Robert A. Kelley Garage door noise reduction roller assembly having threads which extend to the distal end of the roller shaft, and a threaded closing member

Also Published As

Publication number Publication date
ATA190391A (de) 1998-09-15
AT405010B (de) 1999-04-26
DE4030692A1 (de) 1992-04-02

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Date Code Title Description
AS Assignment

Owner name: GRASS AG, BUNDESSTRASSE 10 A-6973 HOCHST/VLBG., AU

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DOMENIG, GEORG;REEL/FRAME:005529/0925

Effective date: 19901123

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19961211

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362